You are using Visual Studio .NET to develop an application to replace a COM-based application. You are assigned to write a . NET class that will be used by client applications as a COM object. Your class code is being moved and modified while development continues on the new application.You want to minimize any possible disruption to the COM interface as a result of code changes.Which code segment should you use?

A.Public Class MyClassToExpose Public Function Calc () As Integer 'Implementation code goes here.End Function End Class

B.Public Interface IMyClassToExposePublic Function Calc () As Integer End InterfacePublic Class MyClassToExpose Implements IMyClassToExpose Public Function Calc () As Integer 'Implementation code goes here.End Function End Class

C. Public Class MyClassToExposePublic Function Calc() As Integer 'Implementation code goes here. End Function End Class

D.

E.AutoDispatch) >Public Class MyClassToExpose Public Function Calc () As Integer 'Implementation code goes here.End Function End Class